Former first lady Nancy Reagan died today of heart failure at the age of 94, according to her spokeswoman.<br />Reagan died of congestive heart failure.<br />Nancy Reagan, the widow of former U.S. President Ronald Reagan, has died in Los Angeles, her office has announced. She was 94. Reagan died of congestive .<br />Nancy Reagan, former first lady of the United States and the widow of President Ronald Reagan, died in her Los Angeles home Sunday morning. According to a .<br />Former First Lady Nancy Reagan has died at 94. The cause was congestive heart family. TMZ was the first to report the news. The site said it had learned of .